223061 has 2 divisors, whose sum is σ = 223062. Its totient is φ = 223060.

The previous prime is 223051. The next prime is 223063. The reversal of 223061 is 160322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 180625 + 42436 = 425^2 + 206^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-223061 is a prime.

It is a Sophie Germain prime.

Together with 223063, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111530 + 111531.

It is an arithmetic number, because the mean of its divisors is an integer number (111531).

2²²³⁰⁶¹ is an apocalyptic number.

It is an amenable number.

223061 is a deficient number, since it is larger than the sum of its proper divisors (1).

223061 is an equidigital number, since it uses as much as digits as its factorization.

223061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 223061 is about 472.2933410498. The cubic root of 223061 is about 60.6467987645.

Adding to 223061 its reverse (160322), we get a palindrome (383383).

The spelling of 223061 in words is "two hundred twenty-three thousand, sixty-one".